function pluralize(time, label) {
  if (time === 1) {
    return time + label;
  }
  return `${time + label  }s`;
}

export function timeAgo(time) {
  const between = Date.now() / 1000 - Number(time)
  if (between < 3600) {
    return pluralize(~~(between / 60), ' minute')
  } if (between < 86400) {
    return pluralize(~~(between / 3600), ' hour')
  } else {
    return pluralize(~~(between / 86400), ' day')
  }
}

export function parseTime(time, cFormat) {
  if (arguments.length === 0) {
    return null;
  }

  if ((`${time  }`).length === 10) {
    time = +time * 1000;
  }

  const format = cFormat || '{y}-{m}-{d} {h}:{i}:{s}';
  let date;
  if (typeof time === 'object') {
    date = time;
  } else {
    date = new Date(parseInt(time));
  }
  const formatObj = {
    y: date.getFullYear(),
    m: date.getMonth() + 1,
    d: date.getDate(),
    h: date.getHours(),
    i: date.getMinutes(),
    s: date.getSeconds(),
    a: date.getDay(),
  };
  const time_str = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
    let value = formatObj[key];
    if (key === 'a') return ['一', '二', '三', '四', '五', '六', '日'][value - 1];
    if (result.length > 0 && value < 10) {
      value = `0${  value}`;
    }
    return value || 0;
  });
  return time_str;
}

export function formatTime(time, option) {
  time = +time * 1000
  const d = new Date(time)
  const now = Date.now()

  const diff = (now - d) / 1000

  if (diff < 30) {
    return '刚刚'
  } else if (diff < 3600) { // less 1 hour
    return Math.ceil(diff / 60) + '分钟前'
  } else if (diff < 3600 * 24) {
    return Math.ceil(diff / 3600) + '小时前'
  } else if (diff < 3600 * 24 * 2) {
    return '1天前'
  }
  if (option) {
    return parseTime(time, option)
  } 
    return d.getMonth() + 1 + '月' + d.getDate() + '日' + d.getHours() + '时' + d.getMinutes() + '分'
  
}

/* 数字 格式化 */
export function nFormatter(num, digits) {
  const si = [
    { value: 1E18, symbol: 'E' },
    { value: 1E15, symbol: 'P' },
    { value: 1E12, symbol: 'T' },
    { value: 1E9, symbol: 'G' },
    { value: 1E6, symbol: 'M' },
    { value: 1E3, symbol: 'k' },
  ];
  for (let i = 0; i < si.length; i++) {
    if (num >= si[i].value) {
      return (num / si[i].value + 0.1).toFixed(digits).replace(/\.0+$|(\.[0-9]*[1-9])0+$/, '$1') + si[i].symbol;
    }
  }
  return num.toString();
}

export function html2Text(val) {
  const div = document.createElement('div');
  div.innerHTML = val;
  return div.textContent || div.innerText;
}

export function toThousandslsFilter(num) {
  return (+num || 0).toString().replace(/^-?\d+/g, m => m.replace(/(?=(?!\b)(\d{3})+$)/g, ','));
}
//
// export function currency (value, symbol, decimals, options) {
//   let thousandsSeparator, symbolOnLeft, spaceBetweenAmountAndSymbol;
//   let digitsRE = /(\d{3})(?=\d)/g;
//   options = options || {};
//   value = parseFloat(value);
//   if (!isFinite(value) || (!value && value !== 0)) return '';
//   symbol = symbol != null ? symbol : '';
//   decimals = decimals != null ? decimals : 2;
//   thousandsSeparator = options.thousandsSeparator != null ? options.thousandsSeparator : ',';
//   symbolOnLeft = options.symbolOnLeft != null ? options.symbolOnLeft : true;
//   spaceBetweenAmountAndSymbol = options.spaceBetweenAmountAndSymbol != null ? options.spaceBetweenAmountAndSymbol : false;
//   let stringified = Math.abs(value).toFixed(decimals);
//   stringified = options.decimalSeparator
//     ? stringified.replace('.', options.decimalSeparator)
//     : stringified;
//   let _int = decimals
//     ? stringified.slice(0, -1 - decimals)
//     : stringified;
//   let i = _int.length % 3;
//   let head = i > 0
//     ? (_int.slice(0, i) + (_int.length > 3 ? thousandsSeparator : ''))
//     : '';
//   let _float = decimals
//     ? stringified.slice(-1 - decimals)
//     : '';
//   symbol = spaceBetweenAmountAndSymbol
//     ? (symbolOnLeft ? symbol + ' ' : ' ' + symbol)
//     : symbol;
//   symbol = symbolOnLeft
//     ? symbol + head +
//     _int.slice(i).replace(digitsRE, '$1' + thousandsSeparator) + _float
//     : head +
//     _int.slice(i).replace(digitsRE, '$1' + thousandsSeparator) + _float + symbol;
//   let sign = value < 0 ? '-' : '';
//   return sign + symbol;
// }

export function currencyToNumber(currency) {
  const result = parseFloat(currency.toString().replace(/,/g, ''));
  return result || 0.00;
}

export function getNameByObj(arr, obj) {
  return _.find(arr, obj).name;
}






